| Business | Phone |
| A-One Business Svc 555 Southdale Rd E #204, London N6E 1A2 | (519) 686-0364 |
| Greentree Gas & Oil Ltd 552 Newbold St, London N6E 2S5 | (519) 681-9355 |
| Hannah Resources 50 Northumberland Rd #1, London N6H 5J2 | (519) 471-5309 |
| Kinetic Energy 200 Queens Ave #200, London N6A 1J3 | (519) 433-7710 |
| Ontario Petroleum Institute 555 Southdale Rd E, London N6E 1A2 | (519) 680-1620 |
| Petroland Limited 4379 Colonel Talbot Rd, London | (519) 652-5096 |
| Reeftop Inc 118 Springfield Cres, London N6K 2T6 | (519) 472-6306 |
| Black-Gold Land & Exploration 747 Hyde Park Rd #207, London N6H 3S3 | (519) 472-5148 |
| Rubicon Petroleum Inc 555 Southdale Rd E #106, London N6E 1A2 | (519) 680-9985 |
| Shiningbank Energy Ltd 552 Newbold St, London N6E 2S5 | (519) 649-0511 |
| Talisman Energy Inc 75 Conifer Pl, London N6K 4B3 | (519) 657-7303 |
| Tribute Resources Inc 309 Commissioners Rd W #E, London N6J 1Y4 | (519) 657-7624 |
| Veteran Resources 555 Southdale Rd E, London N6E 1A2 | (519) 686-9443 |
| Fairlady Energy Inc 431 Boler Rd, London N6K 2K8 | (519) 657-8658 |
| Cameron Petroleum Inc 9120 Elviage Dr, London N6K 4N5 | (519) 657-9304 |
| Colonial Petroleums Ltd 747 Cranbrook Rd, London N6K 3H7 | (519) 641-1380 |
| Elexco Limited 555 Southdale Rd E #201, London N6E 1A2 | (519) 686-0470 |